ok everyone 

i have now got elgg 4.3.4 installed. changed some settings last night , all went fine,

was able to leave a blog post to update everyone,

now since last night i have been getting a error page when i hit the save or submit button either changing settings, or making a new blog post or uploading photos etc that includes editing posts i have made, i even asked my mate who is also a member tried to make a new post etc, he is getting the same error.

see screen shot link :  https://imgur.com/G4dEr9g

i have checked all plugins, disabled plugins that i installed, run a check on the database,

it all looks ok.

hell i have even configured manually some settings in the settings.php file, but the elgg site settings is not reading it correctly. 

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the other problem is that the database it self , some of the sub parts like in phpmyadmin look blank even know all users are there, and posts, i used the same data details for the new version.

can anyone suggest any advise please